Question

what should be added to 1/5to get 3/7​

Answer 1

Answer:

8/35

Step-by-step explanation:

Let x be the number which is added to 1/5 to get 3/7,

⇒ 1/5+x=3/7

⇒ x=3/7-1/5                                     (LCM of 7 and 5=35)

      = 3/7*5/5=15/35

                 &

       1/5*7/7=7/35

⇒ x= 15/35-7/35

      = (15-7)/35

      = 8/35

Therefore, 8/35 will e added to 1/5 to get 3/7.

Hope it help you;

Answer 2

To find:

The number that should be added to 1/5 to get 3/7

Step-by-step explanation:

In order to find the number that should be added to 1/5 to get 3/7, we subtract 1/5 from 3/7.

Then the required number

= 3/7 - 1/5

= (3 × 5 - 1 × 7)/35

= (15 - 7)/35

= 8/35

Answer: 8/35 should be added to 1/5 to get 3/7.

We can find the solution in another way. Let us see how.

Let the required fraction be x.

Then, 1/5 + x = 3/7

⇒ x = 3/7 - 1/5

⇒ x = 8/35

Answer: Required fraction = 8/35.